diff --git a/include/v8-cppgc.h b/include/v8-cppgc.h
index 0f18de2b12..8c7dc28b7e 100644
--- a/include/v8-cppgc.h
+++ b/include/v8-cppgc.h
@@ -76,12 +76,15 @@ struct WrapperDescriptor final {
   uint16_t embedder_id_for_garbage_collected;
 };
 
-struct V8_EXPORT CppHeapCreateParams {
+struct CppHeapCreateParams {
   CppHeapCreateParams() = default;
   CppHeapCreateParams(const CppHeapCreateParams&) = delete;
   CppHeapCreateParams(CppHeapCreateParams&&) = default;
   CppHeapCreateParams &operator = (const CppHeapCreateParams&) = delete;
 
+  inline CppHeapCreateParams(WrapperDescriptor wrapper_descriptor)
+      : wrapper_descriptor(wrapper_descriptor) {}
+
   std::vector<std::unique_ptr<cppgc::CustomSpaceBase>> custom_spaces;
   WrapperDescriptor wrapper_descriptor;
   /**